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Malleus Monstrorum - Cthulhu Mythos Bestiary - Slipcase Set

¥10,151
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CHA23170-X
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That is not dead which can eternal lie,
And with strange aeons even death may die…

Two-Volume Slipcase Set

Here, shall you know the terrors of the void, the nightmare bringers, and the unspeakable lurkers.

Ancient secrets, whispered lore, and collected facts concerning the alien and otherworldly horrors of the Cthulhu Mythos. A cavalcade of monsters and god-like alien intelligences beyond human understanding, all vividly detailed and portrayed. With over 250 entries to inspire countless adventures.

Chaosium Unveiled: Inside The Malleus Monstrorum Bestiary

Watch the unveiling video to see the book for yourself. Remember that you get the PDF when getting the physical copy.

The information within is designed to bring the creatures and bizarre races of the Cthulhu Mythos to life at the gaming table, as well as all manner of Great Old Ones, Outer Gods, Elder Gods, Avatars, and Unique Beings. Their lore and statistics updated and revised for the Call of Cthulhu 7th edition game (and Pulp Cthulhu). All brought to startling life by the illustrations of expert artist Loïc Muzy.

This two-volume collection is packed with ideas, concepts, and insights to immerse your scenarios and campaigns deep in the heart of the Cthulhu Mythos.


Malleus Monstrorum - Vol 1 - Front Cover

Volume 1: Monsters of the Mythos

From the spawn of Abhoth to yuggs, the monsters of the Mythos are herein described, their lore and statistics updated and revised for the Call of Cthulhu 7th edition game.

With over 150 entries concerning Cthulhu Mythos monsters and alien species, as well as creatures from folklore and animal beasts, this tome supplies a wealth of ideas to bring your campaigns and scenarios life with untold horrors.

Sample Page

Malleus Monstrorum - Vol 2 - Front Cover

Volume 2: Deities of the Mythos

Fundamental truths of the cosmos herein lie, to be used to support and inspire countless adventures by bringing Cthulhu, Hastur, Azathoth, and many others to your games. With over 110 entries concerning Great Old Ones, Outer Gods, Elder Gods, Avatars, and Unique Beings, this tome supplies a plethora of ideas to immerse your campaigns and scenarios deep in the heart of Cthulhu Mythos lore.

While humanity may crave both comfort and truth, only one or the other is possible.

Cthulhu & Avatars

Enhance Your Experience

The Malleus Monstrorum Keeper Deck

Sold separately, the Malleus Monstrorum Keeper Deck provides over 60 monsters on handy tarot-sized cards for quick reference. After studying and selecting the fiendish mythos beast you plan to throw at your players, keep your epic 2 volume slipcase in your library and come to the table with gorgeously illustrated cards with all relevant information at your fingertips!

Learn more about the Malleus Monstrorum Keeper Deck here.

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What The Critics Say

  • "Without doubt, the definitive Call of Cthulhu monster guide... a full-color feast for the eyes and the absolutely essential compendium of Lovecraftian deities and denizens."

    — Andrew Logan Montgomery, Exploring the Otherworlds of Fiction, Magic, and Gaming.

  • "Looking back over twenty-five years of monster volumes for Call of Cthulhu, it's obvious that Chaosium's new two-volume Malleus Monstrorum is not just the best, but miles ahead of its predecessors. It's beautifully designed, gorgeously illustrated, and stunningly complete."

    — Shannon Appelcline, RPGNet Review.

  • "An important entry in the 7th Edition library... the breadth of the project is authoritative and all-inclusive. If I have a question about a Cthulhu Mythos monster this is probably the first place I'm going to go to now."

    — Dave Thaumavore, YouTube Review.

  • "Jaw-dropping... its exquisite art and its refined text make it one of the most striking publications of the current edition. Alongside The Grand Grimoire of Cthulhu Mythos Magic, it will be part of the wish list of all fans of the system."

    — Donjon Master, (review is in Portuguese)..

  • "The Malleus Monstrorum goes deep into the creation of a monster as an experience rather than a known thing... This is an excellent resource for those who want more out of the beasties in their game, or want to take a shot at creating their own cosmic horrors. All in all, Malleus Monstrorum sets an excellent standard for RPG bestiary collections, both now and in the future."

    — Never Read the Latin, Bestiary Review.

  • "9/10 - Malleus Monstorum is an absolute gem... Chaosium delivers a jam-packed two volume reference that blends flavor and mechanics to offer Keepers a detailed accounting of Mythos-based threats."

    — The Gaming Gang, A Monstrous Manual Reviewed.

  • "Five out of five eldritch tentacles – I think the slipcase is worth it just for the first book of monsters alone. What a horrifying and terrifying collection to rend investigators with and threaten to eat the heads of heroes."

    — Charles Dunwoody, ENWorld, Malleus Monstrorum Unboxing.

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Publisher:
Chaosium
Rule Set:
Call of Cthulhu 7th Edition
Year Released:
2020
Format:
Full Color Slipcase Set (2 volumes)
Page Count:
216 and 264
ISBN:
978-1-56882-334-8
Authors:
Mike Mason, Scott David Aniolowski, Paul Fricker
Cover Artist:
Loïc Muzy
Interior Artist:
Loïc Muzy
Layout:
Nicholas Nacario
  • 5
    The definitive bestiary for Call of Cthulhu

    Posted by Jason Karns on 16th Nov 2021

    An superb two volume set that expands on the lore of the various Mythos creatures and gods (including possible "blessings" for characters who worship the Great Old Ones, Outer Gods, and Elder Gods). Was expecting some more artwork, but some the of the descriptions for the monsters are simplistic (such as blobs, formless entities, and regular animals corrupted in some way), so I can't in good conscious take away points for that. Pick up a copy to enhance your CoC campaigns or adventures.

  • 5
    High Quality Production and Content

    Posted by Scott Edward Nash on 30th Sep 2021

    The Slipcase set is really, really nice. The case itself is thick and sturdy, the books are high quality and each has a ribbon bookmark. The content is where it really shines though, very thorough background information and ideas how to use the Deities and minions in your campaigns. The amount effort to create these manuals must have been a labor of love. There is so much information it is really amazing. Well worth the cost and probably worth more than the asking price. Very happy with my purchase.

  • 4
    Content invaluable, would benefit from more art

    Posted by Dennis Twardy on 9th Sep 2021

    First of all: it's a great product and any Keeper who wants to come up with their own scenarios and adventures basically needs this. It's not so much about the stats but about the cults, the history and the detailed descriptions. It would be a 5+ star product if it just had more art work. I'm not expecting every single creature to be visualized, but there are many pages with barely anything except text. It's invaluable for its content, more art would make it perfect.

  • 5
    Beautiful product

    Posted by Steven on 8th Aug 2021

    This is a lovely product. Chaosium's physical products are superior to every other company in the industry. Their books are solidly bound, the pages are heavy and pleasant to the touch, and the writing and artwork are excellent. The slipcase is collector's-item quality. I don't even have anyone to run a CoC game for, but I am glad to have this thing just as a collector and lover of RPGs.

  • 5
    Ready for a part 2!

    Posted by Zackary Clarke on 10th Jul 2021

    This book is fantastic! Contains plenty of monsters with detailed descriptions and amazing artwork. I hope the same effort goes into a book detailing monsters of the dreamlands.

  • 4
    Great Reference Book - not enough pictures

    Posted by Morgan Hua on 20th Apr 2021

    The books have chock-full of information. Vol 1 is on creatures. Vol 2 is on each Mythos Deity and their cults, a gold mine of info. The only drawback is most Monster Manuals have an illustration for each creature. This is not the case for this set of books. I'd say 1/3 to 1/2 of the entries have illustrations and most are in sepia tones, not full color. Some of the well-known creatures don't have illustrations and some illustrated in the Keeper Rulebook are not illustrated in this set. Even though the horror should be left to the imagination of Players, as a GM, I'd like an illustration to help me, so I can pick a detail that I can focus on or give as a hint. Some entries are not quite alphabetical, but based on their place of origin, for example: "Tindalos, Hounds of" or "Shub-Niggurath, Dark Young of." Overall, a great set of books in a handsome slipcase.

  • 5
    Highly recommended

    Posted by BG Sheppard on 26th Jan 2021

    I've said for years that Chaosium will sell you more game, more supplement, and more adventure for your money than anyone in the industry. This slipcase set keeps up the tradition. No effort has been spared and no corners have been cut. Beautiful, vividly imagined artwork combines with a wealth on detail on the creatures and deities of the Mythos all geared to the latest edition of COC. These books are value for the money, but be warned that in addition to the sticker price, you may be out some sanity points. This set ranks among the best of the best in Call Of Cthulu. Highly recommended.

  • 5
    Magnificent

    Posted by Shane Bauer on 31st Dec 2020

    After perusing the PDF version for months all I can say is yes, get the print version. In the long history of bestiaries and "god books" for RPGs this is by far the best. A must for any Keeper.